Question:medium
Which of the following is a Category A bioterrorism agent?
Which of the following is a Category A bioterrorism agent?
Show Hint
Recall the highest-risk tier: the one with smallpox, plague and the viral haemorrhagic fevers.
Updated On: Jun 23, 2026
- Chikungunya
- Anthrax
- Hendra
- Influenza
Show Solution
The Correct Option is B
Solution and Explanation
Tier-table approach. The CDC bioterrorism scheme runs A, B, C in falling order of threat. Category A is the deadly headline group, think of the mnemonic anchors smallpox, anthrax, plague, botulism, tularaemia and the viral haemorrhagic fevers, all capable of mass casualties and demanding national preparedness. Category B is the second tier (moderate spread, low mortality) and includes chikungunya, cholera, ricin and the food and water threats. Category C is the emerging-threat bucket meant for agents that could be engineered, such as Hendra, Nipah, MERS, SARS and highly pathogenic influenza strains. Map each option to its tier: chikungunya is B, Hendra is C, influenza is C, and only anthrax lands in A. Answer: Anthrax.
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